Implementing Caching: Browser, Server, CDN

1. Browser Caching

Store static files (images/CSS/JS) locally to reduce load times.

How to Configure:

# Add to .htaccess (Apache)

  ExpiresActive On
  ExpiresByType image/jpg "access 1 year"
  ExpiresByType text/css "access 1 month"

    

2. Server-Side Caching

Cache dynamic content (e.g., PHP/WordPress pages).

Tools:

• Redis/Memcached:

  
  sudo apt install redis-server  # Ubuntu
              

• WordPress Plugins: WP Rocket or W3 Total Cache.

3. CDN Caching

Use a CDN (e.g., Cloudflare, AWS CloudFront) to cache content globally.

Steps:

1. Sign up for Cloudflare.
2. Point your DNS to Cloudflare.
3. Enable "Caching" and "Auto Minify" in the dashboard.